How to read the band →
Solid line = floor (spellings that unambiguously belong to the group). Shaded band up to the dashed edge = ceiling (the most it could reach if every ambiguous spelling counted here).
Harley
Harley is now well below its former popularity. All-time it's been given to 90,921 U.S. babies, the 467th most common name by sound today, peaking at 2,903 in 2017, with 1,392 in 2025.
By sound, Harley also includes the spellings Harlee, Harleigh, Harlie.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).